288828868 has 6 divisors (see below), whose sum is σ = 505450526. Its totient is φ = 144414432.

The previous prime is 288828833. The next prime is 288828877. The reversal of 288828868 is 868828882.

It can be written as a sum of positive squares in only one way, i.e., 270010624 + 18818244 = 16432^2 + 4338^2 .

It is a super-2 number, since 2×288828868² = 166844229980322848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36103605 + ... + 36103612.

Almost surely, 2^288828868 is an apocalyptic number.

It is an amenable number.

288828868 is a deficient number, since it is larger than the sum of its proper divisors (216621658).

288828868 is a wasteful number, since it uses less digits than its factorization.

288828868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72207221 (or 72207219 counting only the distinct ones).

The product of its digits is 6291456, while the sum is 58.

The square root of 288828868 is about 16994.9659605426. The cubic root of 288828868 is about 661.0183758089.

The spelling of 288828868 in words is "two hundred eighty-eight million, eight hundred twenty-eight thousand, eight hundred sixty-eight".